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Finding the Fourth Proportional to 227,485.20, 313,930.66 and 125,510.64

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Solution

The fourth proportional to 227,485.20, 313,930.66 and 125,510.64 is: 173,205.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,485.20 : 313,930.66 = 125,510.64 : x
  2. Step 2: Convert to fraction form
    227,485.20/313,930.66 = 125,510.64/x
  3. Step 3: Cross multiply
    227,485.20x = 313,930.66 × 125,510.64
  4. Step 4: Simplify right side
    227,485.20x = 39,401,638,052.22
  5. Step 5: Solve for x
    x = 39,401,638,052.22/227,485.20
  6. Step 6: Final answer
    x = 173,205.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.